# US 5,704,708 A · Louvered lamp assembly with three boss mounting system

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- Number: US 5,704,708 A
- Document ID: US5704708A
- Status: Granted
- Kind: A
- Application number: 08/630,526
- Filed: 1996-04-10
- Granted: 1998-01-06
- Earliest claimed: 1996-04-10
- Assignees: Integrated Systems Engineering, Inc.
- Inventors: Robert Dee Barson; Derik Remmelle West
- Web page: https://patentgrep.com/patent/US5704708A

## CPC

- F21V 19/0015: {Fastening arrangements intended to retain light sources}
- F21V 17/164: {the parts being subjected to bending, e.g. snap joints}
- G09F 13/28: Signs formed by filament-type lamp (by selective lighting G09F9/00)
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS

## Abstract

The apparatus is a lamp assembly with a plurality of bulb assemblies used for data (or similar) display with varying character sizes. The bulb assemblies include a reflector with three bosses. Two of the bosses snap detent engage a lampbank while the third boss extends through the lampbank, attaches to a printed circuit board and serves as a standoff or spacer therefrom. The bulb assemblies further include a louver which snap engages onto the lens to form a lens/louver assembly which hinges and snaps to the reflector. The louver can be used as a handle to remove the lens from the bulb assembly.

## Claims

### Claim 1

A lamp assembly for displaying data comprising:
a cabinet including a front planar lampbank and a planar circuit board means spaced inwardly parallel from said front planar lampbank, said front planar lampbank including a plurality of apertures;
an array of bulb assemblies attached to said front planar portion, each of said bulb assemblies comprising:
a bulb in electrical communication with said planar circuit board means;
a reflector surrounding said bulb for reflecting light from said bulb outwardly from said lamp assembly, said reflector including a first backwardly extending boss, a second backwardly extending boss, and a third backwardly extending boss:
a lens means attached to said reflector;
a louver means attached to said lens;
said first backwardly extending boss and said second backwardly extending boss snap detent engaging first and second apertures from said plurality of apertures in said lampbank; and
said third backwardly extending boss passing through third aperture from said plurality of apertures in said lampbank and attaching to said circuit board means.

### Claim 2 (depends on 1)

The lamp assembly of claim 1 wherein said third backwardly extending boss is attached to said circuit board means by a mechanical fastener.

### Claim 3 (depends on 1)

The lamp assembly of claim 1 wherein said reflector has an open front end and parabolic shaped rear walls, said first, second and third backwardly extending bosses being integral with said rear walls and substantially parallel with each other.

### Claim 4

A lamp assembly for displaying data comprising:
a cabinet including a front planar lampbank;
an array of bulb assemblies attached to said front planar lampbank, each of said bulb assemblies comprising:
a bulb;
a reflector surrounding said bulb for reflecting light from said bulb outwardly from said lamp assembly, said reflector including a front open portion and a rear portion, said rear portion including means for attaching to said front planar lampbank;
a lens including first means for engaging said front open portion of said reflector;
a louver including second means for engaging said lens, whereby said lens can be disengaged from said reflector by a user urging said louver away from said cabinet;
wherein said first and second means for engaging comprise respective first and second means for snap detent engaging; and
wherein said lens includes peripheral indentations along edges thereof and said second means for engaging said lens comprises backwardly extending prongs on said louver which snap detent engage said peripheral indentations of said lens thereby forming said second means for engaging.

### Claim 5 (depends on 4)

The lamp assembly of claim 4 wherein said backwardly extending prongs are integral with lateral sides of said louver.

### Claim 6 (depends on 5)

The lamp assembly of claim 5 wherein said louver includes means for maintaining inclination of said louver with respect to said lens.

### Claim 7 (depends on 6)

The lamp assembly of claim 6 wherein said means for maintaining inclination of said louver with respect to said lens includes at least one portion downwardly extending from said louver positioned between said backwardly extending prongs.